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T: Fachverband Teilchenphysik

T 67: Higgs Physics VII (HH and Trilinear Coupling)

T 67.3: Vortrag

Donnerstag, 3. April 2025, 16:45–17:00, ZHG104

Efficiency measurements of di-lepton triggers in a search for di-Higgs production in CMS data — •Balduin Letzer, Lukas Ebeling, Mathis Frahm, Johannes Haller, Karla Kleinbölting, Finn Labe, Artur Lobanov, and Matthias Schröder — Institut für Experimentalphysik, Universität Hamburg

With a collision rate too large to store all events at the CMS experiment, a fast online selection (trigger selection) of interesting events is performed. The knowledge of the efficiency of this trigger selection is crucial in many physics analyses. A common method to measure the trigger efficiency in data uses a dataset selected with an orthogonal trigger selection. The method is used to measure the efficiency of different trigger selections in a search for di-Higgs production in the bbWW final state with two leptons, using data from the LHC Run-3. The results are used to derive correction factors that are applied to the simulated signal and background events in the analysis, in order to improve their modelling of the data.

Keywords: Trigger; Di-Higgs; CMS; di-lepton; Scale factors